Average Co-Inventor Count = 2.87
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Control Data Corporation (2 from 210 patents)
2. Arbitron Inc. (2 from 40 patents)
3. The Arbitron Company (1 from 12 patents)
5 patents:
1. 8260113 - Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto
2. 7316025 - Method and apparatus for encoding/decoding broadcast or recorded segments and monitoring audience exposure thereto
3. 5740035 - Self-administered survey systems, methods and devices
4. 5579124 - Method and apparatus for encoding/decoding broadcast or recorded
5. 5235414 - Non-obtrusive programming monitor